diff --git a/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/hystrix/v1/define/HystrixCommandInstrumentation.java b/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/hystrix/v1/define/HystrixCommandInstrumentation.java
index fe23ef30d..780db9359 100644
--- a/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/hystrix/v1/define/HystrixCommandInstrumentation.java
+++ b/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/hystrix/v1/define/HystrixCommandInstrumentation.java
@@ -29,13 +29,6 @@ import static net.bytebuddy.matcher.ElementMatchers.any;
 import static net.bytebuddy.matcher.ElementMatchers.named;
 import static org.apache.skywalking.apm.agent.core.plugin.match.HierarchyMatch.byHierarchyMatch;
 
-/**
- * {@link HystrixCommandInstrumentation} represent that the hystrix plugin intercept the constructor in the class that
- * hierarchy {@link com.netflix.hystrix.HystrixCommand} class by using the {@link org.apache.skywalking.apm.plugin.hystrix.v1.HystrixCommandConstructorInterceptor}
- * class.
- *
- * @author zhangxin
- */
 public class HystrixCommandInstrumentation extends ClassInstanceMethodsEnhancePluginDefine {
 
     public static final String INTERCEPT_CLASS = "org.apache.skywalking.apm.plugin.hystrix.v1.HystrixCommandConstructorInterceptor";
@@ -56,7 +49,7 @@ public class HystrixCommandInstrumentation extends ClassInstanceMethodsEnhancePl
     }
 
     @Override protected InstanceMethodsInterceptPoint[] getInstanceMethodsInterceptPoints() {
-        return new InstanceMethodsInterceptPoint[]{
+        return new InstanceMethodsInterceptPoint[] {
             new InstanceMethodsInterceptPoint() {
                 @Override public ElementMatcher<MethodDescription> getMethodsMatcher() {
                     return named("run");
diff --git a/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/hystrix/v1/define/HystrixPluginsInstrumentation.java b/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/hystrix/v1/define/HystrixPluginsInstrumentation.java
index e7b82a9de..0c59115d4 100644
--- a/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/hystrix/v1/define/HystrixPluginsInstrumentation.java
+++ b/apm-sniffer/apm-sdk-plugin/hystrix-1.x-plugin/src/main/java/org/apache/skywalking/apm/plugin/hystrix/v1/define/HystrixPluginsInstrumentation.java
@@ -28,13 +28,6 @@ import org.apache.skywalking.apm.agent.core.plugin.match.ClassMatch;
 import static net.bytebuddy.matcher.ElementMatchers.named;
 import static org.apache.skywalking.apm.agent.core.plugin.match.NameMatch.byName;
 
-/**
- * {@link HystrixPluginsInstrumentation} represent that the hystrix plugin intercept the
- * <code>getCommandExecutionHook</code> method in the {@link com.netflix.hystrix.strategy.HystrixPlugins} class class by
- * using the {@link org.apache.skywalking.apm.plugin.hystrix.v1.HystrixCommandConstructorInterceptor} class.
- *
- * @author zhangxin
- */
 public class HystrixPluginsInstrumentation extends ClassInstanceMethodsEnhancePluginDefine {
 
     public static final String INTERCEPT_CLASS = "org.apache.skywalking.apm.plugin.hystrix.v1.HystrixPluginsInterceptor";